Fin radiator



INVENTOR H hi4? 7-.

ATTORNEY 2 Sheets-Shet 1 .ZZ. AUST/N BY m A. H... HART FIN RADIATOR Filed Sept. 8, 1951 April 9, 1935.

y A. H. HART April 9, 1935.

FIN RADIATOR Filed Sept. 3; 1931 2 Sheets-Sheet 2 INVENTOR ATTORNEY AUST/Y/V H HART.

Patented Apr. 9, 1935 UNITED STATE FIN RADIATOR Austin H. Hart, Long Branch, N. .L, assignor, by V mesne assignments, to Heating Appliances and Equipment Company, Incorporated, a corporation of Delaware the'radiator body, by placing same over the top "thereof.

Another object is toconstruct the fin member in such manner that each fin is'a'dapted to tightly grip the radiator body, thereby forming a good metallic contact therewith'and. retaining a j grip which cannot be readily loosened unless force is applied. V

Among other features are improved means to properly space ,saidifins and means to assure a good surface contact between the fins and radiator body if thebody is cast and has a wavy surface.

By my arrangement the fins areformed from one metallic sheet which has equally spaced openings punched through from one edge, and flanges forming the sides of each opening. After the punching operation the fins are alternately folded, thus forming a sinuous-fin structure with a channel at one edge, formed'by the aligned punched openings.

After the fins are formed they are easily assembled as a unit by placing said unit over the radiator body and forcing same downward to the limit of the openings. Due to slight irregularities in alignment of the slotted openings an excellent clamping engagement is provided between the flanges of said openings and the radiator body;

The preferred form of structure is shown in the accompanying drawings, in which Fig. 1 is a perspective view of a complete radiator assembly with parts broken away to clearly show the body construction.

Fig. 2 is a side elevation of the structure shown in Fig. 1 with a portion broken away.

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2.

Fig. 4 is an enlarged plan view of one end of the radiator assembly.

Fig. 5 is a face View of a fin blank as it would look after the stamping and flange forming operation.

Application September 8, 193i, Serial No.56l,5 28 I Claims. (crestar)" Fig. Sis asection taken along theiline 6-6 of Figs. '7, 8 and 9 show modified formsof folded fin structure in fragmentary perspective views.

Fig. 10 shows a modified'form'of fin assembly. j

Fig. 11 shows a fin with modified form of flange and a reinforcing rib, and I Fig. 12 is a perspective detail view onan en-. larged scale showing one'portion of .a fin and. flange. J 1

Referring to the drawings in which like refer-. ence'characters indicate' likeparts, the reference character It refers generally to the radiator body and12 to the fin structure.

The said body 10 preferably comprises a one piece cast member consisting .of a hollow core l4 having a chamber l5, end portionsl6|8 formed integrally, therewith, and bosses-20-22 at the lower corners. It will be observedthat this onepiece cast body provides a very rigid structure which requires only the boring and threading of two holes 2628 for inlet and outlet. connections,

assemble endfittin'gs on the core, which is the usual practice in the construction and assembly of fin radiators. Feet: 3!!32 are formed as a 'thuseliminating the time and.1abor required tov part'of the bosses 20-22, which are flat at the bottom for the purpose of supporting the body in an erect position when placed on .the floor, and they project below the lower surface of the. core to protect said core from sudden shocks when it is moved about, also to provide suflicient metal so' that the threaded openings :26428- may be low enough to permit proper drainage. The walls of the ends l6 and'l8 are made somewhat thicker than the core walls to provide shoulders or abutments'34--36.1 An air valve (not shown) is to be placed in either one of the positions indicated at 38-40, according to the heating system used. The fin member l2 comprises a conntinuously folded metallic sheet,-fo1ded in alternate or zig .zagorder, providing a multiplicity of substantially parallel fins 42. Before folding. the sheet is run through a press or other forming machine, which punches openings 44 and forms flanges 4$48 at the edges of each opening in alternate directions as indicated in Fig. 5. The openings 44 go through the lower edge of the sheet and r 64'66 from one end of each of said sections; and

adaptedto engage'a core Gil-from above and below,

tight grip, a good metallic contact is made which is suflicient to assure adequate heat conduction :without resorting to dipping in a galvanizing bath. The latter may be resortedito however if desired;

Several staggered projections: 50" are formed" on each flange 46-48 which engage the wall of the adjacent fin, thereby definitely spacing the fins and preventing the flange of bneflnfrom slipping P. ,under the flange of an adjacent fin; Inwill be.ob-.

served that theseprojections are all locatdin the same?relative: position as seen: in Fig- 5, but when the folds are' made, each projection'willj engagea blanka'surzfacerof the adjacent fin. Slots 5 I mayialsoFbe provided in. the flanges 46-148 to provide .further flexibility' when the surface of a cast coreisfiwavyi Y 7 5 Another form of fin structure is shown in Fig; 11, iniiwhichithe' flangeslfla have extended portions loibent outwardat substantially right angles" to the flanges 46a, thus providing spacin'g'mem bersi which willhav'e' a greater bearingsurface against theadjacentifin wall: than the projections. 50, and: will: provide better: heat conduction=be- A rib 12 may betpressed into the 'surface-of eachfinto strengthen same ifdesired;

'Whiler IV have shown the: finszin the preferred:

tween fins.

forrrr. as applied: to :a' casting .and provided with wedgeshaped openings, they 'may be applied .to

anyother 'suitableform of core and theopenings shapediaszdesired, such asindicated for example,"

in-ith'e structures'shown in Figs. 7, 8, 9-and=10.. In

- Fig. the openings 52" form a channel whichis: adapted to be placedoirta core' from below; in

Fig-.l8za plurality ofropenings' 54and56are shown which extend? inwardfrorn both the upper and" lower. edgesy'in Fig. 9- the openings 58 are cen-' trallwdisposedandthe entire structure is adapt-- edto surroundtthe' coreyand in'Fig. 10, a two sectionzfinstructure'fifland 62 is shown having. slots therebysurrounding same.

Various changes canbe made in: the details of! construction herein shown and described; asforming oneembodiment of my:invention,1any' such modifications still-being within thescope' or a the invention here claimed ifrthe principles of'operation. and results. above "explained. are substan;

" 7 site.directions.toiprovideamultiplicity'of fins tiallylpreserved; 5

-I"cla.im: I. I A

1'. In a radiator, fin member a continuously tically disposed spaced fins, each fin having a slotted flanged opening from onev end thereof, which flanges are adapted to wedge against the sides of a radiator body to become fixed thereto.

2.In a radiator fin member, a continuously folded metallic sheet having its foldsin'opposite directions and providing a mult iplicity of spaced fins,,. each fin having-a flanged :opening from? one end thereof, andprojections formed on said flanges adapted to engage the surface of adjace'nt .fins to function as spacer stops.

3; Aicombination as defined in claim 2 in which the flanges are slotted to provide flexibility when --con'tacting uneven surfaces.

*"ealnairadiator-fin member, a structure as "defined,iniclaimljifi which the slotted openings are formed'from below.

51111: 'a', radiatorifin "member, a' continuously j folded metallic sheet, having its folds in opposite direction'and providing a multiplicity'of spaced fins, ,each "fin having. ,a -substantially centrally p s dop nin :-withinsihl a 6:. A fin; radiator. comprising. in; combinationwhich fin member is adaptedtqbe placed :over;

said core and gripthe sides; thereof? and the tw'o;,=

. a one piece cast body, havinga core. with'a chem- 1;

opposite end'fifns;engage the end abutments.

7;. In a; ,fin-.'-radiator the combination; of: a,- one;- piece 'cast. hollow; body member;having bosses cast'at the lower ends-thereof for inlet andou ta let; connections, and :a raised abutmenttat' each endof said. core, 7 with; a; fin' member comprising a continuously fold'ed metallic sheet providing a":

"multiplicity of:spaced.fins, a slottedjopening in flange at each side of said slot,said fin member being-adaptedv toi be mounted; enthe core that the flanges fit-against. thefisides' of the coreqinu gripping: engagement! therewith, and. the end fin membersrabut against-the raisedmbutments 8. In a radiator fin member, a continuously folded metallic sheet, hav'inglits folds. in opposite directions to: providers. multiplicity: of" mm spaced at. substantially equal "distances apart, each having aslotted: opening from above; 1 *9; In aradiator fin member, a continuously folded metallic sheen-having its folds in oppo site. directions; to; provide a f-multiplicity ofv .flIlS: spaced at substantiallyjequal distances japart,.' each fin having slottedopeningsat opposite: ends thereof.

, fin.

1'0. In a radiatorgzfin' niember; a continuously; V

folded metallic: sheet, having its folds, in ioppoi spaced'at' substantially equal distances apart;-

'eachfin' having a plurality of slots therein; folded metallic' -sh'eet having its folds in opposite a directions and-providinga multiplicity of veri AUSTIN-H. ,HARTL 

